A broadband high-power power dividing circuit
By designing a composite left- and right-handed transmission line and a Gysel power divider topology, the problem of miniaturization of the positioning antenna power divider circuit in a multi-feed, multi-frequency structure was solved, realizing a broadband, high-power power divider circuit, reducing circuit size and improving bandwidth and transmission efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG JC ANTENNA CO LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-06-05
AI Technical Summary
The power divider circuit of existing positioning antennas is difficult to miniaturize and integrate in multi-feed multi-frequency structures, and existing devices have narrow bandwidth, high loss and high cost at high frequencies.
The circuit design employs a composite left- and right-hand transmission line, a non-phase-shifting microstrip line, and a Gysel power divider. It combines capacitors, inductors, and resistors to achieve phase-shifting functionality. It uses an FR4 double-sided copper-clad PCB as the substrate, resulting in a simple structure and stable performance.
It realizes a low-cost, broadband, high-power power divider circuit, reduces circuit size, improves bandwidth and transmission efficiency, and reduces insertion loss.
Smart Images
Figure CN224328899U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of positioning wireless technology, and more specifically, it relates to a broadband high-power power divider circuit. Background Technology
[0002] Currently, the power divider circuits for positioning antennas typically employ Wilkinson power dividers, 3dB bridges, and microstrip power dividers. While Wilkinson power dividers offer stable performance and are simple to implement, they require significant space, making them particularly unsuitable for miniaturization and integration in multi-feed and multi-frequency structures. 3dB bridges provide excellent phase difference control, but their bandwidth is narrow at high frequencies and their price is relatively high. Microstrip power dividers have a simple structure and are easy to manufacture, but they suffer from significant losses and narrow bandwidth at high frequencies.
[0003] In view of the constraints of existing technologies and structures, there is a need for a low-cost, relatively simple, and stable broadband high-power power divider circuit. Utility Model Content
[0004] In view of the problems existing in the prior art, this utility model provides a broadband high-power power divider circuit to solve the technical problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a broadband high-power power divider circuit, comprising several composite left- and right-handed transmission lines, a non-phase-shifting microstrip line, two power divider circuits, and a bridge circuit, wherein,
[0006] Composite left- and right-handed transmission lines achieve phase shifting through capacitors, inductors, and resistors.
[0007] The power divider circuit is the topology of a power divider, which has a phase-shifting function.
[0008] The secondary input interface of the bridge is connected to one of the power dividers via a composite left-handed transmission line, and the secondary output interface of the bridge is connected to the other power divider via a non-phase-shifted microstrip line.
[0009] Both sets of power divider circuits have a power supply point group, which includes two power supply points. The power supply point with a larger phase shift is connected to the composite left and right line transmission line, and the other power supply point is connected to the non-phase shift transmission line. A signal transmission line is connected between the composite left and right line transmission line and the non-phase shift transmission line connected to the two power supply points.
[0010] The present invention is further configured such that the power divider circuit is a topology circuit of a Gysel power divider.
[0011] This invention is further configured such that, in the power divider circuit, there are port 1, port 2, port 3, and a 180° impedance matching microstrip line, wherein...
[0012] Port 1 is connected to Port 2 and Port 3 via microstrip lines.
[0013] The 180° impedance-matched microstrip line is connected to port 2 and port 3 via the microstrip line.
[0014] The present invention is further configured such that when the power divider circuit is used to divide one input signal into two or more output signals, port1 is used as the main input before the splitting, and port2 and port3 are used as branch outputs after the splitting.
[0015] The present invention is further configured such that when the power divider circuit is used to combine multiple signals into one signal for output, port2 and port3 are used as branch input terminals before combining, and port1 is used as the main output terminal after combining.
[0016] The present invention is further configured such that the power divider circuit uses an FR4 double-sided copper-clad PCB board as the substrate.
[0017] The present invention is further configured such that the two sets of power divider circuits have the same structure.
[0018] The present invention is further configured such that a single power divider circuit may include two sets of feed point groups, wherein the set of feed point groups with larger phase shift is connected to the bridge via a composite left and right hand transmission line.
[0019] Compared with the prior art, this utility model provides a broadband high-power power divider circuit, which has the following beneficial effects:
[0020] 1. In a power divider circuit with a set of feed points, connecting the feed points with larger phase shifts to composite left and right hand transmission lines significantly reduces the circuit size.
[0021] 2. In a power divider circuit with two sets of feed points, the feed point set with the larger phase shift is also connected to the bridge via a composite left and right hand transmission line, further reducing the circuit size.
[0022] 3. Power divider circuits using Gysel power divider topology can effectively improve circuit power and bandwidth, and reduce insertion loss to improve transmission efficiency. Attached Figure Description
[0023] Figure 1 A schematic diagram of a broadband high-power power divider circuit;
[0024] Figure 2 This is a schematic diagram of a power divider circuit. Detailed Implementation
[0025] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0026] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.
[0027] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.
[0028] Please refer to Figure 1 The main input / output terminal 1 of the circuit is connected to the main input / output interface of the bridge 2. The composite left and right hand transmission line 41 is connected to the secondary input interface of the bridge 2. The non-phase-shifted microstrip line 42 is connected to the secondary output interface of the bridge. The composite left and right hand transmission line 41 and the non-phase-shifted microstrip line 42 are respectively connected to the power divider circuit of the same Gysel power divider topology. The power divider circuit on the right side is connected to the non-phase-shifted microstrip line 42.
[0029] The right-side power divider circuit has a set of feed point groups 51, which are connected to the composite left and right hand transmission line 52 and the non-phase shift transmission line 53 respectively. The composite left and right hand transmission line 52 and the non-phase shift transmission line 53 are connected by a transmission line 54.
[0030] The left-side power divider circuit has a set of feed point groups 31, which are respectively connected to the composite left and right hand transmission line 32 and the non-phase shift transmission line 33. The composite left and right hand transmission line 32 and the non-phase shift transmission line 33 are connected by a transmission line 34.
[0031] Please refer to Figure 2 The microstrip line impedance between port1 and ports2 and 3 is The microstrip line impedance between port 2 and port 3 and the 180° impedance-matched microstrip line is... The impedance of the 180° impedance-matched microstrip line is .
[0032] In all the solutions mentioned above, although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A broadband high-power power divider circuit, characterized in that, It includes several composite left- and right-handed transmission lines, non-phase-shifted microstrip lines, two power divider circuits, and a bridge circuit, among which, The composite left- and right-hand transmission lines achieve phase shifting through capacitance, inductance, and resistance. The power divider circuit is a power divider topology circuit with phase shifting function. The secondary input interface of the bridge is connected to one of the power dividers via a composite left-hand and right-hand transmission line, and the secondary output interface of the bridge is connected to the other power divider via a non-phase-shifted microstrip line.
2. The broadband high-power power divider circuit according to claim 1, characterized in that, Both sets of power divider circuits have a power supply point group, which includes two power supply points. The power supply point with a larger phase shift is connected to the composite left and right line transmission line, and the other power supply point is connected to the non-phase shift transmission line. A signal transmission line is connected between the composite left and right line transmission line and the non-phase shift transmission line connected to the two power supply points.
3. The broadband high-power power divider circuit according to claim 1, characterized in that, The power divider circuit includes port 1, port 2, port 3, and a 180° impedance-matched microstrip line, wherein... Port 1 is connected to Port 2 and Port 3 via microstrip lines. The 180° impedance-matched microstrip line is connected to port 2 and port 3 via the microstrip line.
4. The broadband high-power power divider circuit according to claim 3, characterized in that, When a power divider circuit is used to split one input signal into two or more output signals, port1 is the main input terminal before splitting, and port2 and port3 are the branch output terminals after splitting.
5. A broadband high-power power divider circuit according to claim 3, characterized in that, When a power divider circuit is used to combine multiple signals into a single output signal, port 2 and port 3 are the branch input terminals before the signal is combined, and port 1 is the main output terminal after the signal is combined.
6. A broadband high-power power divider circuit according to claim 1 or 3, characterized in that, The power divider circuit uses an FR4 double-sided copper-clad PCB as its substrate.
7. A broadband high-power power divider circuit according to claim 2, characterized in that, The power divider circuit has two sets of feed points, with the set of feed points with a larger phase shift connected to the bridge via a composite left and right hand transmission line.